What does everyone think of this setup? Does anyone happen to have a sound of the DC Exhaust? I have heard the Injen, HKS and TRD Exhaust but if anyone has more links to those I would appreciate it. A question I have is, I am looking for an exhaust that not only has a deep rumble, but also adds to performance (no matter how minor). I don't want something just because it sounds good, so if anyone can help me here, I would greatly appreciate it.